一、引言在冶金、冶炼、化工等高温生产行业,高温的测量和控制贯穿整个生产过程。传统的测温和控温广泛使用工业热电偶进行接触测温。热电偶是贵金属中的稀缺资源,价格昂贵,使用寿命短,大大提高了生产成本。因此,迫切需要研发可替代贵金属热电偶的测温仪。插入式红外辐射测温仪(以下简称“测温仪”)是 I. Introduction In metallurgy, metallurgy, chemical and other high-temperature production industries, high temperature measurement and control throughout the entire production process. The traditional temperature and temperature control widely used industrial thermocouple contact temperature measurement. Thermocouples are scarce resources in precious metals, expensive, short life, greatly increased production costs. Therefore, there is an urgent need to develop thermometers that can replace precious metal thermocouples. Plug-in infrared radiation thermometer (hereinafter referred to as “Thermometer ”) is